[chore]downgrade java to adjust to upstream

Author: foo-543674

.github/workflows/build.yaml

@@ -27,7 +27,7 @@ jobs:
       - name: Set up JDK
         uses: actions/setup-java@v4
         with:
-          java-version: '21'
+          java-version: '11'
           distribution: 'temurin'
           cache: 'maven'
 

.github/workflows/deploy.yaml

@@ -22,7 +22,7 @@ jobs:
       - name: Set up JDK
         uses: actions/setup-java@v4
         with:
-          java-version: '21'
+          java-version: '11'
           distribution: 'temurin'
           cache: 'maven'